Effect Of Zinc Oxide—Aluminium Oxide Mechanical Blends for Boosting the Polycrystalline Silicon Solar Cell Performance through Antireflection Properties

• Published in: SILICON Vol. 15; no. 15; pp. 6375 - 6386
• Main Authors: Kaliyannan, Gobinath Velu, Gandhi, Uma, Rathanasamy, Rajasekar, Subramanian, Mohankumar, Kandasamy, Suganeswaran, Gunasekaran, Raja, Palaniappan, Sathish Kumar
• Format: Journal Article
• Language: English
• Published: Dordrecht Springer Netherlands 01.10.2023; Springer Nature B.V
• Subjects: Aluminum oxide; Antireflection coatings; Chemistry; Chemistry and Materials Science; Deposition; Efficiency; Energy conversion efficiency; Environmental Chemistry; Inorganic Chemistry; Lasers; Materials Science; Optical Devices; Optical properties; Optics; Oxide coatings; Photonics; Photovoltaic cells; Polycrystals; Polymer Sciences; Polysilicon; Power sources; Protective coatings; Renewable energy sources; Silicon; Silicon substrates; Sol-gel processes; Solar cells; Spin coating; Thickness; Zinc oxide; Zinc oxides; Aluminium oxide; Zinc oxide; Sol–gel method; Antireflection coating; Spin coating; Polycrystalline solar cell
• ISSN: 1876-990X; 1876-9918
• DOI: 10.1007/s12633-023-02515-2

In the current context, there is a great desire to develop renewable energy sources as a power source. In order to improve the power conversion efficiency (PCE) of silicon solar cells, several studies are being undertaken in this area. This investigation focuses on preparing ZnO-Al 2 O 3 blend as an antireflective coating (ARC) for improving the efficiency of polycrystalline silicon power conversion. The sol—gel method was employed to synthesis ZnO-Al 2 O 3 blend which is produced by mixing zinc oxide with aluminium oxide. The spin coating process was used to deposit single to four layers of ZnO-Al 2 O 3 blend on a silicon solar substrate. The thickness of ZnO-Al 2 O 3 coating obtained was measured with the help of atomic force microscopy (i.e.40 nm).The effect of zinc oxide and aluminium oxide coating on electrical, structural and optical characteristics of coated polycrystalline silicon solar cells, as well as cell temperature is investigated. A layer deposition of a single to multiple layers on a silicon solar cell was identified by an increase in layer thickness. At a low cell temperature (40 °C), the triple layer(LIII)deposition attained a maximum absorbance of 92% and power conversion efficiency (PCE) of 18.8%, demonstrating that photons diffuse on the solar cells were increased. The results show that zinc oxide and aluminium oxide mixture is a good anti-reflection coating material in improving silicon solar cell power conversion efficiency.